var t_id = setInterval(animate, 60);
var pos = 0;
var dir = 2;
var len = 0;

function animate(){
    var elem = document.getElementById('progress');
    if (elem != null) {
        if (pos == 0) 
            len += dir;
        if (len > 32 || pos > 79) 
            pos += dir;
        if (pos > 79) 
            len -= dir;
        if (pos > 79 && len == 0) 
            pos = 0;
        elem.style.left = pos;
        elem.style.width = len;
    }
}

function remove_loading(){
	window.clearInterval(t_id);	
    t_id = window.setInterval(animate,60);
    $('#loader_container').hide();
		   
}